Opensource as Windows binary

GNU WGET

GNU Wget is a free software package for retrieving files using HTTP, HTTPS and FTP, the most widely-used Internet protocols. It is a non-interactive commandline tool, so it may easily be called from scripts, cron jobs, terminals without X-Windows support, etc.

GNU Wget has many features to make retrieving large files or mirroring entire web or FTP sites easy, including:

Can resume aborted downloads, using REST and RANGE

Can use filename wild cards and recursively mirror directories

NLS-based message files for many different languages

Optionally converts absolute links in downloaded documents to relative, so that downloaded documents may link to each other locally

Runs on most UNIX-like operating systems as well as Microsoft Windows

Supports HTTP proxies

Supports HTTP cookies

Supports persistent HTTP connections

Unattended / background operation

Uses local file timestamps to determine whether documents need to be re-downloaded when mirroring